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block: pass a block_device and opf to bio_alloc

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Pass the block_device and operation that we plan to use this bio for to
bio_alloc to optimize the assignment.  NULL/0 can be passed, both for the
passthrough case on a raw request_queue and to temporarily avoid
refactoring some nasty code.

Also move the gfp_mask argument after the nr_vecs argument for a much
more logical calling convention matching what most of the kernel does.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220124091107.642561-18-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2022-01-24 10:11:05 +01:00
committed by Jens Axboe
parent b77c88c210
commit 07888c665b
42 changed files with 130 additions and 194 deletions
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12
drivers/nvme/target/io-cmd-bdev.c
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@@ -268,14 +268,15 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
if (nvmet_use_inline_bvec(req)) {
bio = &req->b.inline_bio;
bio_init(bio, req->inline_bvec, ARRAY_SIZE(req->inline_bvec));
bio_set_dev(bio, req->ns->bdev);
bio->bi_opf = op;
} else {
bio = bio_alloc(GFP_KERNEL, bio_max_segs(sg_cnt));
bio = bio_alloc(req->ns->bdev, bio_max_segs(sg_cnt), op,
GFP_KERNEL);
}
bio_set_dev(bio, req->ns->bdev);
bio->bi_iter.bi_sector = sector;
bio->bi_private = req;
bio->bi_end_io = nvmet_bio_done;
bio->bi_opf = op;
blk_start_plug(&plug);
if (req->metadata_len)
@@ -296,10 +297,9 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
}
}
bio = bio_alloc(GFP_KERNEL, bio_max_segs(sg_cnt));
bio_set_dev(bio, req->ns->bdev);
bio = bio_alloc(req->ns->bdev, bio_max_segs(sg_cnt),
op, GFP_KERNEL);
bio->bi_iter.bi_sector = sector;
bio->bi_opf = op;
bio_chain(bio, prev);
submit_bio(prev);